How can we find out that the given substance is acid or base?

Question

Answer

¶¶ By ph value. if less than 7 than than acid. if more than 7 than base.

¶¶ litmus test

Acid turn blue litmus to red and bases turn red litmus to blue.

Answer

We can find out a given substance whether it is an acid or a base using indicators.Indicators are the substances which is used to test whether a substance is acidic nor a basic in nature.
Common indicators used are
• Litmus paper
• China rose indicator
• Phenophtalein
• Methyl Orange
One of indicator which also known as universal indicator not only used to test whether a substance is acidic or basic but also measure their strength also.This universal indicator is known as pH paper.

Answer

By pH value or litmus test etc....!!

Answer

Introduction:
Determining whether a substance is an acid or a base is essential in chemistry. Acids and bases are two distinct types of substances that exhibit different chemical properties. Acids have a sour taste, turn blue litmus paper red, and can donate hydrogen ions (H+). Bases, on the other hand, have a bitter taste, turn red litmus paper blue, and can accept hydrogen ions. There are several ways to identify whether a given substance is an acid or a base.

Using Indicators:
One method to determine if a substance is an acid or a base is by using indicators. Indicators are substances that change color when they come into contact with an acid or a base. Litmus paper is a commonly used indicator. When a substance is acidic, it turns blue litmus paper red, while a basic substance turns red litmus paper blue. This simple test can quickly identify whether a substance is an acid or a base.

Using pH Paper:
Another method is using pH paper, also known as universal indicator paper. pH paper comes in the form of strips impregnated with a mixture of indicators that change color based on the acidity or alkalinity of a substance. When the pH paper is dipped into a solution, it changes color, and by comparing the resulting color with a reference chart, the pH of the substance can be determined. pH values below 7 indicate acidity, while values above 7 indicate alkalinity.

Conductivity Test:
Acids and bases conduct electricity due to the presence of ions. Performing a conductivity test can help determine if a substance is an acid or a base. A simple conductivity apparatus consisting of two electrodes and a bulb can be used. When an acid or a base is connected to the electrodes, the bulb will light up if the substance conducts electricity. Acids and bases both conduct electricity, while neutral substances do not.

Chemical Reaction:
Substances can also be identified as acids or bases based on their chemical reactions. Acids react with metals to produce hydrogen gas, while bases react with metals to produce hydrogen gas and a metal salt. This reaction can be used to distinguish between acids and bases.

Conclusion:
There are several methods to identify whether a given substance is an acid or a base. These include using indicators such as litmus paper, pH paper, conductivity tests, and observing chemical reactions. By employing these techniques, it becomes possible to determine the nature of a substance and classify it as an acid or a base.

Answer

Indicators ka use krke we can find whether the given substance is acid or base like litmus paper test or pH paper ,etc

Answer

By knowing its ph value...

Answer

We can easily find out that the given substance is acid or base by the help of indicator .
an indicator tells us whether the given substance is base or a base by change in it's colour .

The three most common indicators to test for acids and bases are : litmus , methyl orange and phenolphthalein.

* an acid turns blue litmus to red .
* a base (or alkali) turns red litmus to blue.

* methyl orange indicator gives red colour in acid solution.
* Methyl orange indicator gives yellow colour in basic solution.

* phenolphthalein indicator is colourless in acid solution .
* phenolphthalein indicator gives pink colour in basic solution .

I hope it helps you :)

Similar Class 10 Doubts

How we can identify a acid ,a base, a neutral substance by a single red color ph paper?

Can you explain the answer of this question below:A substance A does not dissociate completely into its ions in aqueous solutions. It is bitter in taste and soapy to touch.Identify the substance A.A:Weak baseB:Strong acidC:Strong baseD:Weak acidThe answer is a.

how will you identify a given samples is an acid,base or salt using litmus paper? Related: Overview of Acids and Bases?

What it mean that a substance belong to carboxylic acids .and also explain hydroxy and ketonic group . related to pyruvate and lactic acid .?

If a substance is a strong base then it will also a week acid?

Top Courses for Class 10View all

Science Class 10

Social Studies (SST) Class 10

Mathematics (Maths) Class 10

English Grammar Advanced

English Grammar Basic

Top Courses for Class 10

Top Courses for Class 10

Related Content

About Class 10

Class 10 Study Material

Class 10 All Subjects

NCERT Textbook Solutions

Other Classes

Important Links

Company